= 0)B at vertex (

layer

momentum [GeV]

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15

1 2 10 20 210 210×2 310 310×2

= 0) B at vertex (

µ P